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Dove Press, International Journal of Chronic Obstructive Pulmonary Disease, (Volume 13), p. 2033-2039

DOI: 10.2147/copd.s161345

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The Efficiency Index (EFFi), based on volumetric capnography, may allow for simple diagnosis and grading of COPD

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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